Improvement in extension-rings for jewelry



GLO. STREET. Extension Ringfor-Jewelry.

203,792. a, Patented May 14, 1187s; 1

Nv PETERS, PNOTOLITHOGRAPHER wAsmNGTON. D O,

UNITED STATES PATENT OFFICE.

GEORGE O. STREET, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN EXTENSION-RINGS FOR JEWELRY.

Specification forming part of Letters Patent No. 203,792, dated May 14,1878; application filed April 25, 1878.

To all whom it may concern:

Be it known that I, GEORGE O. STREET, of Brooklyn, in the county ofKings and State of New York, have invented a new and useful Improvementin Extension-Rings, which improvement is fully set forth in thefollowing specification, reference being had to the ac-' compan yin gdrawing, in which Figure 1 represents a sectional side view. Fig. 2 is aface view. Fig. 3 is a section in the plane an 00, Fig. 1. Fig. 4 showsthe coil which composes my ring. Fig. 5 is a face View of my ring in itssimplest form.

Similar letters indicate corresponding parts.

This invention consists in the combination, in a finger-ring or othersimilar article, of a coil formed of an elastic strand, a cross-head forguiding the end or ends of a coil secured to the strand, andfinger-buttons fastened to the ends of the strands, the coil being bentso that by forcing the finger-buttons toward each other the diameter ofthe ring is increased, and when the finger-buttons are released the coilcloses up and adapts itself to the size of the finger, wrist, or articleto which said ring is to be applied.

The finger-buttons are, by preference, made in the form of slides,embracing the coil and assisting to retain the same in the requiredform.

In the drawing, the letter A designates a coil formed of a. strand ofmetal or other suitable elastic material, wound in such a manner thatits ends pass by each other at least to the distance shown in Fig. 5,but preferably wound in the manner shown in Figs. 2 and 4, where thesame forms somewhat more than two complete circles.

The material from which the coil A is formed must be sufficientlyelastic that the same will have a tendency to recover its original formwhenever its ends are moved toward or from each other.

On the coil A is secured a cross-head, a, which is provided with one ormore openings to guide the end or ends of the strands. When the ring ismade in the form shown in Fig. 5, the cross-head is secured to thestrand at a short distance from one of its ends, and

it is provided with one opening, forming a guide for the other end ofthe strand but if the ring is made in the form shown in Figs. 1, 2, 3,and 4., the cross-head a is secured to the strand at about the middle ofits length, and it is provided with two openings, which form the guidesfor both ends of the strand.

On each end of the coil is secured a fingerbutton, b, and thisfinger-button is, by preference, made in the form of a slide, (see Figs.1, 2, and 3,) which embraces the coil and assists to prevent the samefrom springing open.

By the action of the cross-head a the sev= eral turns of the coil areretained close against each other, and if the fin ger-buttons or slidesb are forced toward each other the diameter of the coil increases, andthe ring can easily be slipped over a finger, and when the fingerbuttonsare released the coil closes up and hugs the finger closely with justsufficient pressure to prevent the ring from dropping off accidentally.

My invention is intended particularly for fin ger-rings; but it can alsobe used with advantage for bracelets or scarf-rings.

What I claim as new, and desire to secure by Letters Patent, is r 1. Thecombination, in a fin ger-ring or other article of a similar nature, ofa coil formed of an elastic strand, a cross-head for guiding the end orends of the coil secured to the strand, and finger-buttons fastened tothe ends of the strand, the coil being bent and adapted to operatesubstantially as shown and described.

7 2. The combination, in a finger-ring or other similar article, of acoil formed of an elastic strand, a cross-head for guiding the ends ofthe coil, secured to the strand at about the middle of its length, andslides fastened to the ends of the strand and embracing the coil,substantially as and for the purpose set forth. In testimony that Iclaim the foregoing I have hereunto set my hand and seal this 23dWitnesses W. HAU'FF, E. F. KASTENHUBER.

